A cutoff in the food supply is the best means of triggering the fall of the cities.
"Down-with-the-Cities"
Nakashima, Tadashi
This was called "Subletts' cutoff," leaving Salt Lake to the south of us, and brings us to the base of the mountains at the source of the Humboldt River.
"California 1849-1913 or the Rambling Sketches and Experiences of Sixty-four Years' Residence in that State."
L. H. Woolley
Why is it you seem so anxious to discover this cutoff?
"My Lady of the North"
Randall Parrish